jasny

Jasny http web framework for nodejs written and for use with TypeScript.

Jasny is a TypeScript framework for making websites. It's best when you use it with your TypeScript projects although you don't have to use TypeScript in order to work with it.

Example main file (index.ts):

/// <reference path="typings/jasny/jasny.d.ts" />
/// <reference path="typings/node/node.d.ts" />
 
import jasny = require('jasny');
import path = require('path');
import Config = require('./Config');
 
var server:jasny.Server = new jasny.Server();
 
server.config.publicDir = path.resolve(__dirname, '..', 'public');
server.config.port = 4601;
server.config.allowCORSFromAll = false;
 
server.di.register('config', new Config());
 
server.addRoute('GET /file/:fileName', require('./actions/file/GetFile'));
 
server.listen();
console.log('Gaad-TabUI listening on port '  + server.config.port);
export = server;
 

Let's examine the code above line by line.

/// <reference path="typings/jasny/jasny.d.ts" />

In this line we are making a reference to declaration file. This file is shipped to you with the module. You can create a symbolic link to point to node_modules/jasny/typings/jasny folder if you want to have it in your typeings directory.

var server:jasny.Server = new jasny.Server();

We are creating new instance of the Server class. This is the facade for our application.

server.config.publicDir = path.resolve(__dirname, '..', 'public');

If we set the publicDir property on the config then the server will start serving static files. If we don't want to serve statics then leave it blank.

server.config.port = 4601;

Port to listen to.

server.config.allowCORSFromAll = false;

If we want to allow Cross Origin Resource Sharing from every server then we can just set this variable to true.

server.di.register('config', new Config());

Here we are registering the config object into dependency injection container.

server.addRoute('GET /file/:fileName', require('./actions/file/GetFile'));

We are adding the route class. Every Route action has to be a class that inherits from jasny.Action. You can use dependency injection in the Actions

server.listen();

Finally we start to listen.

Example action class (GetFile.ts):

/// <reference path="../../typings/node/node.d.ts" />
/// <reference path="../../typings/jasny/jasny.d.ts" />
 
import jasny = require('jasny');
import fs = require('fs');
import Config = require('../../Config');
 
class GetFile extends jasny.Action {
 
  //We declare what we want to inject.
  //If the variable name is different then the registered bean name (for example: 'cfg') then
  //we should define it like that:
  //public inject:any[] = [{cfg: 'config'}];
  //otherwise:
  public inject:any[] = ['config'];
 
  private config:Config;
 
  constructor() {
    super();
  }
 
  private ready() : void {
    //the config variable is ready now
  }
 
  public execute():void {
    fs.readFile('file.txt', (buffer) => {
      this.res.send(buffer.toString());
    });
  }
 
}
 
export = GetFile;